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Heart|Natural|GIA

1.00ct I SI2 Heart Natural Diamond

GD • I/SI2 • GIA 6435807278

Certificate GIA 6435807278

Diamond specifications and retailer prices

From $1,558 SGD
As of November 6, 2026
Save $3,559 SGD (70%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,117 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6435807278. Listed at 18 retailers as of November 5, 2026, with prices from $1,558 to $5,117, a $3,559 spread on the same certified stone. NZ Jewellers lists it at $5,117. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6435807278
Dimensions6.83 × 5.51 × 3.99 mm
L/W Ratio1.24
Top View
6.83 mm5.51 mm1.00 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6435807278
Side View
Table 71.0%CrownGirdle: VTK-XTKPavilionCulet: NoneDepth 58.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,117 SGD|Low: $1,558 SGD|High: $5,117 SGD|Avg: $2,508 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 13$1,558 SGD
Retailer 8$1,643 SGD
Retailer 7$1,936 SGD
Retailer 4$2,070 SGD
Retailer 6$2,098 SGD
Retailer 15$2,098 SGD
Retailer 10$2,163 SGD
Retailer 2$2,166 SGD
Retailer 3$2,195 SGD
Retailer 14$2,272 SGD
Retailer 11$2,327 SGD
Retailer 5$2,421 SGD
Retailer 9$2,848 SGD
Retailer 12$3,665 SGD
NZ Jewellers$5,117 SGD

36 data points across 15 retailers

18 retailers$1,558 SGD to $5,117 SGD

B+
Cheapest Retailer
-
$1,558 SGD
A
Retailer 2
-
$1,643 SGD
View
B+
Retailer 3
-
$1,936 SGD
View
Final sale: no returns
B+
Retailer 4
-
$1,944 SGD
View
B+
Retailer 5
-
$2,070 SGD
View
Retailer 6
-
$2,098 SGD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$2,098 SGD
View
B+
Retailer 8
-
$2,163 SGD
View
B+
Retailer 9
-
$2,166 SGD
View
B+
Retailer 10
-
$2,194 SGD
View
B+
Retailer 11
-
$2,195 SGD
View
B+
Retailer 12
-
$2,230 SGD
View
B+
Retailer 13
-
$2,272 SGD
View
B+
Retailer 14
-
$2,327 SGD
View
B+
Retailer 15
-
$2,421 SGD
View
B
Retailer 16
-
$2,848 SGD
View
B
Retailer 17
-
$3,665 SGD
View
Most Expensive
C
NZ Jewellers
1426f83e-0dc9-4c35-a7e8-399d9e5d8dbe · Nov 5
$5,117 SGD
$3,993 USD
View
17 more retailers have this diamond
Prices start from $1,558 SGDSave up to $3,559 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.00ct Heart
$1,558 SGD